I have a copy of part of a map from the McCubbins Collection located in the Rowan County Library. It appears to show names and locations of land grants but not the boundaries.
On it in succession Northwest to Southeast within a total distance of about three miles are: Allen Alexander 1760 Elk Shoals Cr. Gabriel Alexander Marvin M.E. church Houston's Ferry Rd. David Black Joseph Houst Catawba River
A number of other places had dates on them, none later than 1794.